Algebra 1 - U7 Assessment Review

Which 2 expressions are perfect squares of linear expressions?

• (x+6)²

• x² - 6x + 9

• x² - 16

• 9x² - 25

Tags

CCSS.HSA.APR.C.4

Which 2 equations are equivalent to x² + 4x = 12?

(HINT: Think about completing the square!!!)

• x² + 4x + 12 = 0

• x² + 4x + 4 = 16

• (x+2)² = 12

• (x+2)² = 16

Tags

CCSS.HSA-REI.B.4B

A quadratic function is defined by f(x) = x² - 10x - 8.

Which equation below is the same function written in vertex form?

• (x+5)² - 25

• (x-5)² - 8

• (x-5)² - 33

• (x+5)² - 33

Which equation below is the same as x² - 8x = 9?

• (x-9) (x+1)

• (x+9) (x+1)

• (x+9) (x-1)

• (x-9) (x-1)

Tags

CCSS.HSA-REI.B.4B

What are the solutions for the factored form equation (x-9) (x+1)?

• 9

• -9

• -1

• 1

Tags

CCSS.HSA-REI.B.4B

What factored form equation is identical to the equation below

3x² + 10x + 8 = 0

• (3x+4)(x+2)

• (3x+2)(x+4)

• (3x-4)(x-2)

Tags

CCSS.HSA-REI.B.4B

What 2 solutions exist with the factored form equation below:

(3x + 4) (x + 2)

• -4

• 2

• -2

• -4/3

Tags

CCSS.HSA-REI.B.4B

Which equation would be equivalent to the equation below by completing the square

x² - 8x = -12

• x² - 8x + 16 = -12

• x² - 8x + 12 = 16

• x² - 8x + 16 = -12 + 16

• x² - 8x -12 = 0

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula.

4x² - 5x - 6 = 0

What are the 2 solutions?

• 3/4

• 2

• -2

• -3/4

Tags

CCSS.HSA-REI.B.4B

Kobby kicks a football at the DHS field. The equation f(x) = -16x² + 16x + 12 represents the path of the football, where x represents the number of seconds since it was launched, and f(x) represents the height above the ground in feet.

Solve this equation using ANY method to determine how many seconds it will take before the football hits the ground.

• -1/2

• 1.5

• -6

• 6